22756900 has 18 divisors (see below), whose sum is σ = 49382690. Its totient is φ = 9102720.

The previous prime is 22756891. The next prime is 22756901. The reversal of 22756900 is 965722.

It can be written as a sum of positive squares in 3 ways, for example, as 118336 + 22638564 = 344^2 + 4758^2 .

It is a super-2 number, since 2×22756900² = 1035752995220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22756901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113685 + ... + 113884.

Almost surely, 2^22756900 is an apocalyptic number.

22756900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22756900 is an abundant number, since it is smaller than the sum of its proper divisors (26625790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22756900 is a wasteful number, since it uses less digits than its factorization.

22756900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227583 (or 227576 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 22756900 is about 4770.4192687855. The cubic root of 22756900 is about 283.3811991412.

The spelling of 22756900 in words is "twenty-two million, seven hundred fifty-six thousand, nine hundred".